2,434 results found
    1. Cell Biology

    Intermediate Filaments: The sweet side of vimentin

    Natasha T Snider et al.
    A protein modification called O-linked glycosylation regulates the interactions between vimentin molecules under normal conditions, and the ability of Chlamydia bacteria to replicate after they infect cells.
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    1. Cell Biology
    2. Neuroscience

    Astrocytes refine cortical connectivity at dendritic spines

    W Christopher Risher et al.
    Spines with multiple excitatory contacts are potential sites for competition between thalamic and cortical axons, which is regulated by the astrocytes through the secreted synaptogenic protein hevin.
    1. Neuroscience

    Dendritic sodium spikes are required for long-term potentiation at distal synapses on hippocampal pyramidal neurons

    Yujin Kim et al.
    At distal synapses onto hippocampal CA1 pyramidal neurons, synaptic plasticity is dependent on dendritically initiated sodium spikes, thus establishing a new role for voltage-gated sodium channels in the dendrites that may have important implications for how learning rules are implemented.
    1. Neuroscience

    Selective attenuation of Ether-a-go-go related K+ currents by endogenous acetylcholine reduces spike-frequency adaptation and network correlation

    Edward D Cui, Ben W Strowbridge
    Acetylcholine, a common modulator in the brain, controls spike-frequency adaptation by specifically attenuating Ether-a-go-go related K+ currents, thereby explaining many cortical network statistical changes often observed in vivo.
    1. Developmental Biology
    2. Evolutionary Biology

    A SoxB gene acts as an anterior gap gene and regulates posterior segment addition in a spider

    Christian Louis Bonatto Paese et al.
    Sox21b-1 regulates simultaneous formation of anterior segments and addition of posterior segments in a spider, which resembles segmentation in long- and short-germ insects, and suggests SoxB regulation of segmentation is an ancestral feature of arthropods.
    1. Neuroscience

    Distinct responses of Purkinje neurons and roles of simple spikes during associative motor learning in larval zebrafish

    Thomas C Harmon et al.
    Discrete classes of cerebellar Purkinje neurons show distinct changes in synaptic and spiking activity during motor learning, with simple spikes playing a shifting role during acquisition, expression, and maintenance of learned responses.
    1. Neuroscience

    Palmitoylation of LIM Kinase-1 ensures spine-specific actin polymerization and morphological plasticity

    Joju George et al.
    The protein-lipid modification palmitoylation targets the kinase LIMK1 to dendritic spines to ensure precise control of the size of individual spines in response to synaptic activation.
    1. Neuroscience

    A spike sorting toolbox for up to thousands of electrodes validated with ground truth recordings in vitro and in vivo

    Pierre Yger et al.
    A spike sorting toolbox to quickly and reliably access the activity of thousands of neurons recorded with dense extracellular probes.
    1. Developmental Biology

    A novel role for Ets4 in axis specification and cell migration in the spider Parasteatoda tepidariorum

    Matthias Pechmann et al.
    In the spider Parasteatoda tepidariorum the transcription factor Ets4 is needed for cumulus integrity, dorsoventral patterning and for the activation of hunchback and twist expression.
    1. Neuroscience

    Electrical and Ca2+ signaling in dendritic spines of substantia nigra dopaminergic neurons

    Travis A Hage et al.
    Dopaminergic cells uniquely receive input from a roughly equal mixture of synapses on dendritic spines and synapses formed directly on dendrites.

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